Yanmar 2YM15 Operation Manual

Also see for 2YM15: Operation manual Operation manual Operation manual Operation manual Service manual

Contents

Yanmar 2YM15 Operation Manual Manual pdf 21 page image

FUNCTION OF MAJOR COMPONENTSName of Component FunctionFuel Filter Removes dirt and water from the fuel. Drain the filter periodically. The filter elementshould be replaced periodically. The water separator (if equipped) should bedrained periodically. See Draining Fuel Filter / Water Separator on page 56.Fuel Feed Pump Pumps fuel from the tank to the fuel injection system. Pushing the manual lever onthe side of the feed pump supplies fuel to the engine when fuel priming is needed.Fuel Feed Lever Moving the fuel feed lever up and down feeds the fuel. The lever is used to bleedair from the fuel system after running out of fuel.Engine Oil Filler Port Filler port for the engine oil.Engine Oil Filter Filters fine metal fragments and carbon from the engine oil. Filtered engine oil isdistributed to the engine’s moving parts. The filter is a spin-on type and the elementshould be replaced periodically. See Replacing the Engine Oil Filter Element onpage 53.Marine Gear Filler Port Filler port for marine gear oil; located on top of the marine gear case.Cooling System There are two cooling systems: closed cooling with coolant (fresh water) andseawater. The engine is cooled by the closed cooling circuit. The closed circuit iscooled by seawater using a heat exchanger. The seawater also cools theengine / marine gear oil.Closed CoolingCirculation Pump The centrifugal water pump circulates coolant inside the engine. The circulatingpump is driven by a V-belt.Seawater Pump Pumps seawater from outside vessel to the engine. The seawater pump has areplaceable rubber impeller.Coolant Filler Cap The filler cap on the heat exchanger / coolant tank covers the water supply port.The cap has a pressure regulating valve. When the cooling water temperaturerises, the pressure rises inside the coolant system.Coolant Recovery Tank The pressure valve in the filler cap releases vapor and hot water overflow to thecoolant recovery tank. When the engine stops and the coolant cools, the pressurein the coolant tank drops. The filler cap vacuum valve then opens to send coolantback from the coolant recovery tank. This minimizes coolant consumption. Theclosed cooling system coolant level can easily be checked and refilled in this tank.Engine Oil Cooler A heat exchanger that cools high temperature engine oil using coolant.Intake Silencer (AirCleaner) The intake silencer guards against dirt in the air and reduces the noise of air intake.Nameplates Nameplates are provided on the engine and the marine gear and have the model,serial number and other data. See Location of Nameplates on page 14.Starter Starter motor for the engine; powered by the battery.Alternator Driven by a belt and generates electricity and charges the battery.Engine Oil Dipstick Gauge stick for checking the engine oil level.PRODUCT OVERVIEWYM Series Operation Manual 15© 2007 Yanmar Marine International